For some text types, such as designs for future studies or class projects, writers are asked submit a proposal. A proposal is much like an Introduction in three ways: 1) it should explain the problem to be solved, 2) it should set the proposed research into a larger context, and 3) it should demonstrate why the proposed study is worthwhile. The proposed project may be carried out in reality, in which case the proposal is written before the study is conducted, and it will therefore be written (at least partly) in the future tense.